<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div id="div1">我是一个div</div>
    <button>删除 div 元素</button>

    <script src="jquery-3.7.1.min.js"></script></body>
    <script>
        $(document).ready(function() {
            $("button").click(function() {
                $("#div1").remove();
            });
        });
    </script>
</html>